This patch fixes build problems related to the recent addition of *at() syscalls in sys/stat.h on 8.0-CURRENT (as reported by pointyhat).
Details : a typo in the configure script makes the fourth argument of mknodat detected as dev_t* instead of dev_t (defines XMKNODAT_FIFTH_ARG as *). This is fixed by files/patch-configure.
Fix: Patch attached with submission follows: